Q10. A device driver is an example of A. Utilities B. System software C. Application software D. All of them Q11. Which of the following is not an external source of data? A. Customers B. Competitors and suppliers, C. Sales and personnel records D. Government agencies LAN Q12. Which of the following is a type of Information technology? A. The Internet B. Computer networks C. Database systems Router D. All of the above.